You are (one of) a married couple fi ling jointly. Your taxable income this year will be about $100,000. You have about $25,000 to save or invest. Infl ation is running at 2.5%

annually. What APRs must you receive from a savings bank or from a tax - free investment to show an actual growth of 2% for the year? By actual growth, I mean growth in buying power.